Hey guys, I was wondering if you knew where I could get one of those spare tire winch's for a 2002 Ford Expedition, I don't know the exact name of the part but it's a thing that goes under the SUV and you use a tool to lower the spare tire down to the ground using a cable.

I dont have any idea what you are talking about.
When I have had to use a spare tire, I had to unbolt it from its mount on the bottom of the chassis. I put two large wood blocks on each side, so that when the tire is loose, it doesnt fall on me.

You can do the same, I dont see why you need a rope to remove the tire.